Re: sendmail vs postfix : robustness, stability & vulnerabilities

2015-01-26 Thread L. D. James
On 01/23/2015 08:43 AM, Roger Goh wrote: Q3: Was told by our vendor that they set up 'commercial' version of sendmail which has a separate interface/module GUI for whitelisting & blacklisting. Is there a commercial version of 'postfix' which we can get official (eg: supported by RHEL) suppor

Re: sendmail vs postfix : robustness, stability & vulnerabilities

2015-01-25 Thread Viktor Dukhovni
On Sun, Jan 25, 2015 at 08:45:38PM +0800, Roger Goh wrote: > Does Redhat support postfix (ie provide patches, troubleshooting of > crashes, slowness)? Postfix is not prone to crashes, but if for some unexpected reason it does, or you're experiencing performance issues, you'll likely get better su

Re: sendmail vs postfix : robustness, stability & vulnerabilities

2015-01-25 Thread Postfix User
On Sun, 25 Jan 2015 20:45:38 +0800, Roger Goh stated: > Q4: > Does Redhat support postfix (ie provide patches, troubleshooting of > crashes, slowness)? > > Q5: > We are on SendMail version 3.3.4 & I think it's a commercially-added > tool Flow Control version 2.1.7. > Are these versions rather out

Re: sendmail vs postfix : robustness, stability & vulnerabilities

2015-01-25 Thread Roger Goh
Thanks Viktor. Bear with me if this is OT. Q4: Does Redhat support postfix (ie provide patches, troubleshooting of crashes, slowness)? Q5: We are on SendMail version 3.3.4 & I think it's a commercially-added tool Flow Control version 2.1.7. Are these versions rather outdated? I won't comment on

Re: sendmail vs postfix : robustness, stability & vulnerabilities

2015-01-23 Thread Viktor Dukhovni
On Fri, Jan 23, 2015 at 09:43:39PM +0800, Roger Goh wrote: > We are using a commercial version of sendmail (refer to sendmail.com) > on RHEL 5.x > > We have seen something like 2 mails sent to it within 5 mins & > it just hung up or caused severe delay in delivery. Sendmail has no queue mana

sendmail vs postfix : robustness, stability & vulnerabilities

2015-01-23 Thread Roger Goh
We are using a commercial version of sendmail (refer to sendmail.com) on RHEL 5.x We have seen something like 2 mails sent to it within 5 mins & it just hung up or caused severe delay in delivery. Q1: Is postfix (which is now the default Smtp with RHEL 6.x) more robust ie can take bursts of h