Why in Version 15 have GMS Anti-Virus updates suddenly halved in size?

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Question

Version 15 of The Gordano Messaging Suite introduces compressed Anti Virus updates.
If all three of your definition files require updating, previously this would have meant that over 23MB’s of data was sent to your server.
The new compressed files will mean the entire update is approximately half of this size.

Answer

Here is an Anti Virus update being delivered using the uncompressed files.

Note the ESMTP size in bytes supplied at the Mail From clause.

Connection from [62.172.232.231] [62.172.232.231]
220 test.test.dom (NT0000.23.a2a4ebcb) ready for ESMTP transfer
EHLO office.ntmail.co.uk
250-test.test.dom Hello office.ntmail.co.uk [62.172.232.231], pleased to meet you
250-VRFY
250-SIZE 10485760
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-ETRN
250-DSN
250-AUTH LOGIN DIGEST-MD5 CRAM-MD5 PLAIN 789129kw4613114207
250-STARTTLS
250-XAUD 789129kw4613114207 0.9
250 HELP
MAIL From:<> SIZE=23408062
250 2.5.0 OK.
RCPT To:
MaxMessageSize - bypassed for GMS Anti-Virus update from null@[62.172.232.231]
250 2.5.0 OK.
DATA
354 3.5.4 Start mail input, end with ..
.
SIZE ok 23408062 23408062 null@[62.172.232.231] gmsav@test.dom
62.172.232.231 null@[62.172.232.231] gmsav@test.dom Archived
62.172.232.168 external null@test.dom test.dom postmaster@test.dom localhost
GMS Anti-Virus Update Files received for GMS,command,commtouch
250 2.5.0 Received message cqeqaaaa OK.

Here is an Anti Virus update using the compressed files.

Again, note the ESMTP size in bytes supplied at the Mail From clause.

Connection from [62.172.232.231] [62.172.232.231]
220 test.test.dom (NT0000.23.a2a4ebcb) ready for ESMTP transfer
EHLO office.ntmail.co.uk
250-test.test.dom Hello office.ntmail.co.uk [62.172.232.231], pleased to meet you
250-VRFY
250-SIZE 104801280
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-ETRN
250-DSN
250-AUTH LOGIN DIGEST-MD5 CRAM-MD5 PLAIN 789149kw265359205
250-XRCPTLIMIT 100
250-STARTTLS
250-XAUD 789149kw265359205 0.9
250 HELP
MAIL From:<> SIZE=12511312
250 2.5.0 OK.
RCPT To:
MaxMessageSize - bypassed for GMS Anti-Virus update from null@[62.172.232.231]
250 2.5.0 OK.
DATA
354 3.5.4 Start mail input, end with ..
.
SIZE ok 12511312 12511312 null@[62.172.232.231] gmsav@test.dom
62.172.232.231 null@[62.172.232.231] gmsav@test.dom Archived
62.172.232.172 external null@test.dom test.dom postmaster@test.dom localhost
GMS Anti-Virus Update Files received for GMS,command,commtouch
250 2.5.0 Received message igthaaaa OK.
QUIT
221 2.5.0 Goodbye office.ntmail.co.uk

See Also:

Keywords:av updates compressed v15 zip def sign macro

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