[CentOS] SMTP Port 465 - Postfix

Bob Hoffman bob at bobhoffman.com
Sat Mar 31 07:42:26 EDT 2012


On 3/31/2012 7:36 AM, Jonathan Vomacka wrote:
> I thought port 465 SSL was deprecated and replaced with port 587 TLS? 
> _______________________________________________ CentOS mailing list 
> CentOS at centos.org http://lists.centos.org/mailman/listinfo/centos 
from what I read, and what I use..

25 is the normal smtp port, 587 is an alternative since isps started 
blocking port 25

smtps uses 465

POPs and IMAPS use the 995 993
regular pop / imap is 110 and 143 or 220

at least my postfix seems to use 465 and the 900s as default for 
imap,pop, and smtp using encryption.


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