46 questions in this topic
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55. What IMAP, POP3 and SMTP servers do we provide to clients?
We provide our clients with an IMAP/POP3 incoming mail server and an outgoing SMTP mail server compatible with an SSL certificate. The safest is the server hostname provided when activating the service or correctly configuredmail.twojadomena.pl, if DNS and SSL are ready.
56. Do we recommend mail.domain.pl, cPanel server name or another hostname?
mail.domena.plis convenient for the client, but only works correctly if the DNS and SSL certificate match this name. The cPanel server hostname may be technically more reliable, especially after migration or before a full DNS refresh.
It is worth providing both variants in the guide: a simple one for a domain already directed to Hostilla and a technical hostname for emergency situations.
57. What IMAP SSL/TLS ports do we provide?
For the topic "what IMAP SSL/TLS ports do we provide", first check the setting in the email program configuration and current IMAP/SMTP ports.
Use encrypted ports and authentication for secure email. Typical set
If the program does not send mail, it is most likely that SMTP authentication is missing, the wrong port is used, or the local network is blocking SMTP output.
58. What POP3 SSL/TLS ports do we provide?
For the topic "what POP3 SSL/TLS ports do we provide", first check the setting in the email program configuration and current IMAP/SMTP ports.
Use encrypted ports and authentication for secure email. Typical set
If the program does not send mail, it is most likely that SMTP authentication is missing, the wrong port is used, or the local network is blocking SMTP output.
59. What SMTP SSL/TLS and STARTTLS ports do we provide?
For the topic "what SMTP SSL/TLS and STARTTLS ports do we provide", first check the setting in the email program configuration and the current IMAP/SMTP ports.
Use encrypted ports and authentication for secure email. Typical set
If the program does not send mail, it is most likely that SMTP authentication is missing, the wrong port is used, or the local network is blocking SMTP output.
60. Does SMTP require authentication?
For the topic "does SMTP require authentication", first check the setting in the email program configuration and current IMAP/SMTP ports.
Use encrypted ports and authentication for secure email. Typical set
If the program does not send mail, it is most likely that SMTP authentication is missing, the wrong port is used, or the local network is blocking SMTP output.
61. Do we recommend IMAP over POP3?
Yes, we recommend IMAP for most users. IMAP synchronizes mail with the server, so the same mailbox works conveniently on your computer, phone and webmail.
POP3 makes sense mainly for local archives or in older configurations, but it is easier to cause inconsistencies between devices and accidentally downloading mail to only one computer.
62. When does POP3 still make sense?
POP3 makes sense when the user wants to keep e-mail locally in one program and does not need full synchronization between devices. It can also be used to archive old mail.
For phones, multiple computers, and teamwork, POP3 is usually less convenient than IMAP. You need to be very careful with the option to delete messages from the server after downloading.
63. How to configure Outlook on Windows?
In Outlook on Windows, add your email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
64. How to configure Outlook on Android?
In Outlook on Android, add your email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
65. How to configure Outlook on iPhone/iPad?
In Outlook on iPhone/iPad, add the email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
66. How to set up Apple Mail on macOS?
In Apple Mail for macOS, add your email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
67. How to set up Mail on iPhone/iOS?
In Mail for iPhone/iOS, add your email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
68. How to configure Thunderbird?
In Thunderbird, add an email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
69. How to configure eM Client?
In eM Client, add an email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
70. How to configure Gmail applications with domain mail?
In the Gmail application with domain mail, add an email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
71. How to configure Microsoft Mail/Windows Mail?
In Microsoft Mail/Windows Mail, add the email account manually as IMAP. Enter the full e-mail address as the login, enter the password of this mailbox as the password, and enable SMTP with authentication for outgoing mail.
After configuration, send a test message to yourself and to an external address. If the program asks for a password despite the correct data, check webmail, ports, encryption, hostname and possible CSF/LFD lock after incorrect attempts.
72. How to change the settings of an existing account in Outlook?
When changing the settings of an existing email account, first save the current parameters. Then correct the hostname, ports, encryption, login as a full email address and mailbox password.
After the change, perform a pickup and shipping test. If you have previously changed your mailbox password, make sure there are no other devices still trying to log in with the old password.
73. How to change the settings of an existing Thunderbird account?
When changing the settings of an existing email account, first save the current parameters. Then correct the hostname, ports, encryption, login as a full email address and mailbox password.
After the change, perform a pickup and shipping test. If you have previously changed your mailbox password, make sure there are no other devices still trying to log in with the old password.
74. What to do when your email program keeps asking for your password?
Constantly asking for a password usually means an old password saved in the program, wrong login, wrong port or wrong hostname. First, check your webmail login with the same address and password.
If webmail works, correct the configuration of your email program and check other devices. A phone or old Outlook with an incorrect password may cause repeated CSF/LFD lockouts.
75. What to do when the program receives but does not send?
If the program receives but does not send, the problem is usually with SMTP. Check port 465 SSL/TLS or 587 STARTTLS, enable SMTP authentication and make sure the login is a full email address.
If it still doesn't work, check if your ISP or local antivirus is blocking SMTP connections. In the report, please provide the error message and the time of the sending attempt.
76. What to do when a program sends but does not receive?
If the program sends but does not receive, the problem is usually with IMAP/POP3 or sync folders. Check the port, encryption, hostname and whether the mailbox has not exceeded the quota.
First, log in to webmail. If messages are visible in webmail, it is due to the configuration of the email program or a local filter.
77. What to do if there is a mail server TLS certificate error?
A TLS certificate error means that the server name entered in the program does not match the certificate or the program is connecting to an old server. Use hostname that matches the certificate or correct itmail.twojadomena.pl, if DNS and AutoSSL are already ready.
After DNS migration, this error may be intermittent. If it takes longer, provide support with the server name from the program, domain and certificate message dump.
78. What to do if local antivirus blocks mail synchronization?
Local antivirus can intercept encrypted email connections and cause TLS or synchronization errors. To test, disable encrypted email scanning or add the email program to exceptions, according to the antivirus documentation.
If email works after this change, the problem was with the device, not the server. It is still worth leaving anti-virus protection for files and the system.
79. What to do if your operator's network blocks the SMTP port?
Some operators block selected SMTP ports, especially port 25. To send mail, use port 465 SSL/TLS or 587 STARTTLS with authentication.
If sending works on one network but does not work on another, the problem may be with your Internet operator, VPN or company firewall.
80. Does Autoconfig/Autodiscover work?
Autoconfig/Autodiscover helps email clients find mailbox settings on their own, but only works properly with the correct DNS records and matching SSL certificates.
In Hostilla guides, it is worth providing both auto-configuration and manual IMAP/SMTP settings, because manual settings are more reliable for migrations, non-standard DNS and older programs.
81. What is worth knowing about Autoconfig/Autodiscover for Hostilla?
Autoconfig/Autodiscover helps email clients find mailbox settings on their own, but only works properly with the correct DNS records and matching SSL certificates.
In Hostilla guides, it is worth providing both auto-configuration and manual IMAP/SMTP settings, because manual settings are more reliable for migrations, non-standard DNS and older programs.
82. How to check email settings after migration?
After migration, check the MX record, SPF/DKIM/DMARC, hostname in your email program and the headers of new messages. If the program is still connecting to the old server, this is usually indicated by the hostname, IP address or old DNS settings.
For some time after changing MX, some senders may use the DNS cache. Therefore, it is worth checking your old mail after switching.
83. How to recognize that the program is still connecting to the old server?
After migration, check the MX record, SPF/DKIM/DMARC, hostname in your email program and the headers of new messages. If the program is still connecting to the old server, this is usually indicated by the hostname, IP address or old DNS settings.
For some time after changing MX, some senders may use the DNS cache. Therefore, it is worth checking your old mail after switching.
84. How to configure multiple devices to one box?
It is best to use IMAP for multiple devices in one mailbox. Then the computer, phone and webmail see the same status of folders and messages on the server.
After changing your password, update it on each device. One device with an old password may generate continuous incorrect logins and CSF/LFD lockout.
85. What is worth knowing about secure email encryption in programs?
Secure email encryption means using SSL/TLS or STARTTLS for IMAP/POP3/SMTP and a hostname that matches the certificate. Don't permanently accept certificate warnings without checking the reason.
If the certificate does not match, correct the server name in the program or check the DNS and AutoSSL for the domain.
10195. How to set up email in Microsoft office 365?
For Microsoft 365, mail is not handled locally by cPanel, only by Microsoft. In cPanel, you should set the DNS records specified in the Microsoft 365 panel: MX, SPF/TXT, DKIM/CNAME, Autodiscover and possibly DMARC. In Email Routing for the domain, you need to set Remote Mail Exchanger so that the local server does not try to deliver mail to local mailboxes. DNS changes can take up to 24-48 hours to propagate.
10200. How to configure email in Google suite?
For Google Workspace, email runs on Google servers, and cPanel only manages DNS if the domain uses our nameservers. In the Zone Editor, you need to add Google MX records, SPF/TXT, DKIM generated in Google Admin and DMARC. In Email Routing for the domain, we set Remote Mail Exchanger. A local mailbox in cPanel with the same domain will not receive mail if MX points to Google.
10232. How to solve the problem: adding a mailbox to Mozilla Thunderbird?
In Thunderbird, you need to add an existing mailbox from cPanel, using the full email address as the login. Recommended settings: IMAP, mail.domain.pl server or server hostname, port 993 SSL/TLS; SMTP mail.domena.pl or hostname, port 465 SSL/TLS or 587 STARTTLS, normal password authorization. If the certificate for mail.domain.pl is not yet active, we use the hostname of the server with valid SSL.
10233. How to configure Microsoft Outlook email?
In Outlook, we select manual IMAP/SMTP configuration. The login is the full mailbox address, e.g. biuro@domena.pl. IMAP: mail.domena.pl, port 993, SSL/TLS. SMTP: mail.domena.pl, port 465 SSL/TLS or 587 STARTTLS, with SMTP authentication enabled. The password is the password for the cPanel box. In case of problems, it is worth checking webmail and the Connect Devices function in cPanel first.
10234. How to set up a Gmail account?
In Gmail, you can add an external cPanel mailbox as an account for receiving mail via POP3 or as an SMTP sender address. Gmail does not do full IMAP sync for external accounts in the standard "Check mail from other accounts" mode. POP3: port 995 SSL, SMTP: port 465 SSL or 587 STARTTLS, login full email address. For full IMAP functionality, the Gmail app on your phone or an email client that supports IMAP is better.
10235. How to configure email on an apple device?
In Apple Mail, we add an account of the Other Mail Account type. User is the full email address. For IMAP, we set mail.domain.pl or hostname, SSL port 993; for SMTP, port 465 SSL or 587 STARTTLS with authorization. If the application automatically detects incorrect parameters, go to advanced settings and manually correct the ports, SSL and username.
10236. How to configure bluemail android iOS?
In BlueMail for Android/iOS, select the IMAP/SMTP account and enter the full email address as the login. IMAP: mail.domena.pl or hostname, port 993 SSL/TLS. SMTP: mail.domena.pl or hostname, port 465 SSL/TLS or 587 STARTTLS, authorization required. If the connection to mail.domain.pl reports a certificate error, use the official hostname of the server.
10237. How to solve the problem: changing the mailbox configuration in Mozilla Thunderbird?
Changing the configuration in Thunderbird is done in Account Settings. In Server Settings we change the host, port, SSL and login for IMAP/POP3, and in Outgoing Server (SMTP) we edit the sending server. After changing the mailbox password, the program will ask for a new password or you will need to delete the old password from Password Manager. It is worth using the cPanel → Email Accounts → Connect Devices function as a configuration template.
10238. How to solve the problem: changing the email box configuration in Outlook?
In Outlook, you change the configuration in File → Account Settings → Server Settings or by repairing the account. Please check the incoming IMAP/POP3 server, outgoing SMTP server, ports, encryption and full email address as login. After changing your password in cPanel, Outlook may require you to remove your old password from Windows Credential Manager.
10239. How to solve the problem: changing the mailbox configuration in Microsoft Mail?
In the Microsoft Mail/Outlook for Windows application, the account is edited in the account and synchronization settings. For manual configuration we use IMAP 993 SSL/TLS and SMTP 465 SSL/TLS or 587 STARTTLS, with the full email address as login. If the application does not allow you to correct the parameters, the easiest way is to remove the account from the program and add it again with manual settings.
10240. How to set up an email account in the Gmail mobile app?
In the Gmail mobile application, select Add account → Other → manual configuration → IMAP. Login is your full email address. Incoming server: mail.domena.pl or hostname, port 993 SSL/TLS. Outgoing server: mail.domena.pl or hostname, port 465 SSL/TLS or 587 STARTTLS, authentication required. After adding your account, send a test message and check reception.
10272. How to configure Microsoft email?
For Microsoft Mail/Outlook on Windows we use manual IMAP/SMTP configuration. IMAP: mail.domena.pl or hostname, port 993 SSL/TLS. SMTP: mail.domena.pl or hostname, port 465 SSL/TLS or 587 STARTTLS, authentication required. The login is your full e-mail address. If the application does not accept changes, remove the account from the program and add it again.
10282. How to configure email for iPhone?
On iPhone, select Settings → Mail → Accounts → Add Account → Other. Login is your full email address. IMAP: mail.domena.pl or hostname, port 993 SSL. SMTP: mail.domena.pl or hostname, port 465 SSL or 587 STARTTLS, password authentication. If iOS reports a certificate error for mail.domain.pl, use the official hostname of the server or check AutoSSL for the mail subdomain.
10352. How to configure Outlook on Android?
In Outlook on Android, select Add account → IMAP. Login is your full email address. IMAP server: mail.domena.pl or hostname, port 993, SSL/TLS. SMTP server: mail.domena.pl or hostname, port 465 SSL/TLS or 587 STARTTLS, with authentication enabled. If automatic detection incorrectly completes the ports, you must select advanced configuration and enter the data manually.
10361. How to configure mail clients ports server address examples?
Standard email configuration: IMAP SSL/TLS port 993, POP3 SSL/TLS port 995, SMTP SSL/TLS port 465 or SMTP STARTTLS port 587. The login is always the full e-mail address and the password is the mailbox password. Server: mail.domain.pl, if it has the correct certificate, or the official hostname of the server. SMTP must have authentication enabled. Port 25 is not recommended for email clients.