31 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.