E-Mail Server Ports
All email accounts we host, regardless of the domain name, will use the following server ports.
|
Incoming Server Type: |
Port: |
|---|---|
|
POP3 with SSL |
995 |
|
IMAP with SSL |
993 |
| POP3 with TLS | 110 |
| IMAP with TLS | 143 |
|
Outgoing Server Type: |
Port: |
|---|---|
|
SMTP with SSL |
465 |
| SMTP with TLS | 587 |
Outgoing servers require SMTP authentication. Microsoft Outlook users will need to manually enable this feature.
We Answer Your Questions: FAQ
Q: What is the maximum e-mail attachment size?
A: The ETRN.com e-mail servers do not limit the size of individual e-mail attachments. The ETRN.com e-mail servers do impose a 400 MB maximum total message size limit. Individual customers can choose a smaller message size limit. We can also customize the handling of "over-sized" e-mails. Please contact us to discuss your specific needs. A couple of important facts:
1. Attachments are typically encoded in what is called Base64[1]. As a result, the actual length of MIME-compliant Base64-encoded binary data is usually about 137% of the original file size.
2. E-mails often contain both plain text and HTML components. This also increases the overall size of the e-mail.